just sand them down, use a few plastic primer coats, a few colour coats, a couple lacquer coats and bobs your uncle!
yeah you can unclip it, take off the boot trim on the inside by the screw near the handle, then pull where you feel the boot trim's being held on, because its on poppers, then there a whole which you can pop your hand through and push them out cos you'll feel the pins.. mind you, mine were a b*tch to get out...
then afterwards, they just pop back in
hope i helped